The updated Virtuozzo Containers 4.0 kernel includes a fix for the followingstability issue introduced in the 2.6.18-164.6.1.el5 Red Hat kernel:

- A Hardware Node may hang if the freeze_bdev() kernel function is being called by a kernel module and, at the same time, some file memory mapping is being COWed on a device passed to this function as one of its arguments.

We highly recommend that all Virtuozzo Containers 4.0 users update theirkernel to the latest version.

Please DO NOT USE the "rpm -Uhv" command to install the kernel. Otherwise, all the kernels previously installed on your system may be removed from the Hardware Node.

II. You can adjust your boot loader configuration file to have the new kernel loaded by default. If you use the LILO bootloader, please do not forget to execute the 'lilo' command to write the changes to the boot sector:

# lilo Added Virtuozzo2 * Added Virtuozzo1 Added linux Added linux-up

III. Reboot your computer with the "shutdown -r now" command to boot the new kernel.